Clack water softener does not start regeneration at the programmed time.

Safety: No internal electrical work is required for basic checks.

Steps:

• Verify time of day: Check that the controller’s time matches actual time and AM/PM is correct. Adjust if necessary.
• Check regeneration mode: Confirm the system is set to the desired mode (time clock, metered immediate, or metered delayed). If set to demand-only and water usage is low, regeneration may not occur frequently.
• Review day override: Ensure a maximum day override is programmed so the unit regenerates at least every set number of days even with low usage.
• Power stability: If frequent outages occur, consider using a small UPS or surge protector to maintain clock settings.
• Manual test: Initiate a manual regeneration. If the valve will not start a cycle at all, the control board or keypad may be faulty and require replacement.

Note: After any programming change, observe the next scheduled regeneration to confirm proper operation.